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PowerPoint Presentation:

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RAY : A part of a line, with one endpoint, that continues without end in one direction LINE : A straight path extending in both directions with no endpoints LINE SEGMENT : A part of a line that includes two points, called endpoints, and all the points between them

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INTERSECTING LINE : The two lines in the same plane are not parallel, they will intersect at a common point. Those lines are intersecting lines. Here C is the common point of AE and DB

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PARALLEL LINES : Lines that never cross and are always the same distance apart

Perpendicular Lines:

Perpendicular Lines Two lines that intersect to form a right angles

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Angles The figure formed when two rays share the same endpoint Right Angle: An angle that forms a square corner Acute Angle: An angle less than a right angle Obtuse Angle: An angle greater than a right angle

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Straight Angle : It is equal to 180° Reflex Angle : An angle which is more than 180° but less than 360°

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Complementary Angles : Two angles adding up to 90° are called complementary angles. Here ABD + DBC are Complementary.

Supplementary Angles: Two angles adding up to 180° are called supplementary.:

Supplementary Angles : Two angles adding up to 180° are called supplementary. ABD + DBC are supplementary

Transversal: A Transversal is a line that intersect two parallel lines at different points.:

Transversal : A Transversal is a line that intersect two parallel lines at different points.